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23354251340 = 2257166816081
BaseRepresentation
bin10101110000000001…
…011001100001001100
32020021121010220001212
4111300001121201030
5340312142020330
614421230353552
71454511601220
oct256001314114
966247126055
1023354251340
1199a4958772
12463935b8b8
1322825a3444
1411b7984780
1591a488295
hex57005984c

23354251340 has 24 divisors (see below), whose sum is σ = 56050203552. Its totient is φ = 8007171840.

The previous prime is 23354251309. The next prime is 23354251343. The reversal of 23354251340 is 4315245332.

It is a junction number, because it is equal to n+sod(n) for n = 23354251297 and 23354251306.

It is not an unprimeable number, because it can be changed into a prime (23354251343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83407901 + ... + 83408180.

It is an arithmetic number, because the mean of its divisors is an integer number (2335425148).

Almost surely, 223354251340 is an apocalyptic number.

23354251340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23354251340 is an abundant number, since it is smaller than the sum of its proper divisors (32695952212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23354251340 is a wasteful number, since it uses less digits than its factorization.

23354251340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166816097 (or 166816095 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 23354251340 its reverse (4315245332), we get a palindrome (27669496672).

The spelling of 23354251340 in words is "twenty-three billion, three hundred fifty-four million, two hundred fifty-one thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 166816081 333632162 667264324 834080405 1167712567 1668160810 2335425134 3336321620 4670850268 5838562835 11677125670 23354251340